Collapsible lifting jack and bumper bracket for motor vehicles



Dec. 14, 192e. 1,610,598

A. BOSCARIOL COLLAPSIBLE LIFTING JAC-K AND BUMPER BRACKET FOR MOTOR VEHICLES 25 Filed May 18. 1925 2 Sheets-Sheet l lgzv/z/@IUZL V505 @w11 :La L ,Ey s.

Dec. 14. 1926.

A. BOSCARIOL COLLAPSIBLE LIFTING JACK AND BUMPER BRACKET FOR HDTOR VEHICLES 2 Sheets-Sheet 2 L7/delatan d .13 0 a'cblab'ol Fed May 18,

Patented Dec. 14, 1926.

llltlil STATES EPEENT QFFQE.

ANTGNIO BOSCARGL, OF SYIDLI Y, NEVI SQUTH "WALES, AUSTRALIA, ASSEGNGR ONE-'HEERE T0 FRANK EDV/'ARD MNTON AND JOHN WILLIAM FLECK, BOTH' SYDNEY, AUSTRALA.

COLLAPSBLE LIFTING- JACK AND BUMPER BRACKET FOR MOTOR VEHICLES.

Application filed May 1S, 1925, Serial No. 311.231, and in Australia February 18, 1925.

The object of this invention is to Provide a collapsible lifting jack that may be used as such or as a bracket for the bumper bar of a motor vehicle and to so attach the bumper bars to the brackets that the parts thereof may be quickly detached vand used for the purpose'of lengthening the lever that operates the lifting jack.

The lifting jack is so designed that when not in use as such the parts that form the lever will act as a combined thrust rod and bracket to the. forward end of which the bumper bar is detachably secured, the other parts thereof being so shaped and arranged that they may be collapsed and lie about and parallel with the lever. The whole appliance is therefore compact and is devoid of any dangerous or inconvenient projections.

Vhere front bumper bars only are used there will be one pair of lifting jacks, one at each side of the vehicle but where front and rear bumper bars are installed two pairs of lifting jacks will be necessary.

ln the accompanying drawings- Fig. l is a perspective view of the front portion of a motor vehicle provided with .my combined buniper bar brackets and lifting jacks, the normal position of the appliances at the right hand side'of the vehicle being shown in dotted lines, the operative position of the appliances at that side of the vehicle, in its raised position, being shown in full lines.

Fig. 2 is a plan of the combined bumper bar brackets and lifting jacks in their normal position secured to the front springs of a motor vehicle.

Fig. 3 is a longitudinal section of that part of the lifting jack marked CFC at Fig. 2;

Fig. l is an enlarged perspective view of the coupling socket that is used for coupling the inner ends of the bumper bar together, a section being broken away in order lo show the means adopted for preventing the two members of the bar from turning in the coupling.

is an enlarged perspective view of a combined buffer block and connector in which a portion of the main thrust rod (or lever according to the capacity in which it is used) may limitably slide, and which serves as a buffer block for the buffer spring as well as providing a means for detachably securing the jack to the forward end of the front spring of the vehicle for the purpose of supporting the forward end of the jack and a member of the bumper bar. At this figure is also shown a portion of a double headed bolt that is provided in place of one of the spring pins or bolts by which the body of the vehicle is secured to its springs.

Fig. 6 is an enlarged perspective view of the lifting jack removed from the vehicle, a portion of the operating lever having been broken away in order to economize space, the parts being shown in the position they will occupy prior to the load being taken by the lever. f

Fig. 7 is a perspective view similar -to Fig. 6 but a portion ofthe vehicle spring is also shown and the parts are shown in the position they will occupy after the load as been taken by the lever and the vehicle raised to the highest point.

The main support for the combined lifting jack and bumper barbracket consists of a specially shaped plate 20 adapted to De seated centrally inthe concavity of each of the lower members of the spring of the motor vehicle. These plates are so shaped that by changing them from one side of the vehicle to the other, the lifting jacks may both be situated inside or outside of their rei' spective vehicle springs. In some cases bumper bars are used both atthe frontand rear of the motor vehicle and this invention may be applied with equal eiiiciency in such cases as well as in those cases where only front bumper bars are used. One of or a portion of one of the longitudinal edges of the plate 20 is bent downwardly as at 20a, a turned down lug 20h being formed upon a portion of the other longitudinal edge. 20 is also provided with a central hole 20C to enable it to be securely'fastened in position by the bolt 2l that secures the spring Z of the vehicle to the axle X, the lug 20" and` the turned down edge 2()a preventing the plate from turning upon the bolt. The rear end of the lifting jack is Vpivotally secured to the lug 2Ob by means of the bolt 22, an intermediate support between the axle of the vehicle and theV bumper bar being formed by a specially shaped double headed bolt 23 (see Fig. 5). one of the heads 23 of which is adapted to engage in a. T

The plate (lil lll

slot 24a formed in a specially shaped sleevelike member or hollow butler block 24. By this latter means the forward end of the lifting jack and the bumper bar are. rigidly held in their normal position, the lever then acting as one of a. pair of brackets for the bumper bar.

The operating lever of the lifting j ack consists mainly of two tubes 25 and 26 respectively, the tube 25 being adapted to slidably tit partly within the tube 26. Upon the inner end of the tube 26 is mounted the specially shaped collar or sleeve-like member 2i which acts as a butler block 24 into one end ot which the rear end of the tube 26 enters` the inner diameter of the other end being` reduced to form a bearing for the smaller tube 25. rlhe sleeve-like member 2 is slidably secured to the tube 26 by means of set screws 25ZL that pass freely into longitudinal slots 2Gat cut in the tube 26, the length of the collar or sleeve-like member 2d and the slots 2Ga being suoli as to enable a suli'icient longitudinal movement of the tube 2.6.

The T slot 24e is formed in a suitably Shaped lug or projection 2th that will enable the slot to be formed parallel with the arial line of the sleeve-like member 24.

Upon the tube 2G and at a suitable distance from the member 24 is a collar 27, that is rigidly secured thereon by means of a transverse pin 2S that passes through suitable holes in the collar and the tube 2G and also through suitably positioned longitudinal slots 29 cut in the tube 25 in order to permit the tube 26 to slide longitudinally upon the tube 25. interposed between the collar 27 and the butler or sleeve-like member 24E is a coil spring 30 that surrounds the tube 26, the opposing faces of the butler and the collar being preferably provided with annular grooves in which the respective en ls ofthe spring 30 will lie.

The forward end of the tube 26 is provided with a cross tube 3l (Fig. l) thereby forming a 'i' shaped head. In an axial line with the tube 2G holes 3l are cut or otherwise formed in the cross tube 3l such holes being preferably the same diameter as the internal diameter of the tube 2G. ri`hese holes 31n enable a rod or tube to be inserted in the tube 26 in order to form an extension when the tubes 25 and 26 are to be used as a lever.

As the outer ends of bumper bars are very often bent rearwardly it is particularly convenient for the purpose of this invention that the bumper bar should consist of two tubes or rods 323a either of which is adapted to slide into position through its cross tube 3l as will be seen at Figs, l and 2, or be removed therefrom and the rearwardly bent end passed through the holes 3l into the tube 26 to form an extension of the tubes and 26 when the latter are used as a lever, the bend 33 enables the lever to be moved through a larger arc than would be possible with a straight lever of the same length. rThis will be readily understood by referring to 33 at Fig. l. In order to prevent the bumper bar member 32 or 32a from turning within the tube 26 when it is being used as an extension of the lever, the outer end of each member is slotted as at 32", the tube 2G being provided with a horizontally positioned transverse pin 32 that will lie in the slot 32" when the member or 522L is inserted in the tube 26. The members of the bumper bar are coupled together in their normal position by slidably4 passing the inner ends thereof into the respective ends of a union or socket 34 and cured therein by set screws 35 (Figs. l, 2 and which are preferably provided with large heads 35a to enable them to be turned by hand without the use of a tool. The socket may also be provided with fixed transverse pins 36 the inner ends of the bumper bar members each having a slot 3T wherein its respective pin 3G may lie and thereby form an additional means for preventing the bumper bar members from turning in the socket. The cross tube 31 may also be provided with a similar set screw 31).

The standard of the lifting jack consists of several parts articulated to one another and to the tube and constructed in such a manner that it will not only be strong and comparatively light but when not in use may be folded parallel with and lie about the tube 25. lt Consists of a suitably shaped metal foot or base 3S, integral with which is a channelled member 3S the sides ot which are extended longitudinally to form lugs 39 to each of which the lower end of one of a pair of links Ll() is pivotally secured at 4l and atl respectively. The rear end of the tube 25 is provided with a fixed collar ll2 integral with which is a projecting lug 43 that is bored at right angles to the tube 25 to enable the latter (which is one member of the lever) to be pivotally mounted upon the bolt 22. The links lt() are also pivotally secured upon the bolt 22 one on each side of the lug` @t3 so that the collar 42 and the rear end of the tube 25 lie between the links 40. A channelled metal men'iber or link -p is provided with longitudinally extended sides that forni lugs dit@ at one end, the otherl end also being specially shaped by removing" a part of the bottom of the channel at e145 and forming a downwardly extending lugat each side of the channel, the lugs Lili being pivotally secured, respectively at 41 and itl, whilst the lugs 45 are pivotally secured to a split collar 4-6 by means of the bolt i-T which is screw threaded to receive a nut i-8 preferably of large diameter to enable it to be easily manipulated manually without the use of tools. Upon the tube 25 is a catch lliti lll fifi

plate 49 resembling a saddle in formation and having sides or lugs 48a that project downwardly and lie interposed between the respective lugs 45 and the split collarf46 where they too are pivotally secured upon the bolt 47. The depth of the sides or lugs 48n on the catch plate 49 is such as to enable it to be rocked upon its pivot 47 in order that a stud pin o-r projecting screw head rigidly secured to the tube may-be en gaged in,for disengaged from, a suitably positioned perforation 51 in the catch plate 49.

rlhe catch plate 49 is brought into operation when the appliances are to be used as a lifting jack, the nut 48 being loosened so that the split collar and its attachments may be slid along the tube until the perforation i lies directly over the stud pin or screw head 5() when the perforated end of the catch plate may be depressed; the screw, head or pin 50 thereby becomes engaged in the perfo ation 5l and the upper end of the link 44 is thus held whilst the tubes 25 and 26 are being used as a lever. The catch plate may be operated by a spring interposed between its underside and the split collar 4Gso that the pin or screw head 50 will be automatically engaged when the catch plate is moved into position but this has not been shown in the drawings. When the catch plate is disengaged from the screw head 50 and the split collar slid back along` the tube 25 to its normal posit-ion, the tube 25 will lie within the channelled link 44 the links 40 then lying above and substantially parallel with the tube. In this position the nut 48 may be tightened in order to firmly clamp the split collar to the tube 25. The foot 38 may then be raised until the channelled member 38 lies in a substantially horizontal position, the collar 42 then lying within the channelled member 38a. The means provided for retaining the foot 38 and member 38 in this position consist of a spring operated pin 52 that lies slidably within and normally projecting from the rear end of the tube 25, such pin 52 being depressed rgainst the upper face of the foot 38, as the latter is raised, untill the point of extremity of the pin comes into register with a centrally situated hole 53 in the footv 38 when the action of the spring 54 will cause the pin 52 to enter the hole 53 thereby holding the foot in that position and the channelled member 38a in a horizontal position. The rprojecting` end of the pin 52 is preferably cone shaped so that whilst the pressure exerted upon the pin by the spring 54 will be sufficient to maintain engagement between the foot and the pin downward manual pressure upon the foot will force the pin back against the action of its spring when it is desired to use the appli ance as a lifting liack. The pin 52 is provided with a longitudinal slot 55 of a suit able length, the collar 42 and tube 25 being provided with a suitably positioned screw threaded hole through which a screw 56 is passed so that its end will lie freely within the slot 55. The spring 54 is held in compression between the inner end of the pin 52 and the screw or pin 50a.

lt will be obvious that by providing each of the front and rear springs of a motor vehicle with the plates 2O the lifting jack as illustrated particularly at Figs. 6 and 7 could be quickly attached to the lug 2Ob on the plate 20, in which case only one lifting jack would be necessary as a separate accessory and could be used on any type ofmotor vehicle either with or without bumper bars, or the plates 2O could be dispensed with and a seatingfor the axle formed upon the upper extremity of the lug 43.

llhen it is desiredto release the buffer block or collar 24 from engagement with the double headed spring pin 23 the collar 24 is gripped manually and pulled back against the action of the buffer spring 3() when the T slot 241L will be freed from the head of the pin 23. As an alternative method of releas ing the T slot from the pin 23 the tube 26 could be provided with diainetrically opposite longitudinal slots similar to the slots 29 and registering therewith so as to allow. the tube 2G to slide longitudinally within the collar 27. such movement being limited by the end of the slot abutting against the pin 28. lly this means the tubular cross member 3l could be manually pulled forward pulling with it the tube 26 and collar 24, compressing the spring 30 and disengaging the T slot 24 from the head 23L of the pin 23.

l l claiml. A collapsible lifting jack and bumper bracket for a motor vehicle including a standard, ay first class lever pivotally fulcrurncd upon said standard in such a manner that in operating the lever the fulcrum point is moved upwardly through an arc in a vertical plane and attachments on the lever and collapsible thereabout so as to lie substantially parallel therewith when collapsed.

2. A collapsible lifting jack and bumper bracket for a motor vehicle'and including a standard having a foot, a first class lever, a

pair of links pivotally connected to such lever, a second pair of links pivotally and slidably connected to the lever, the other ends of the first and secondpairs of links being pivotally connected together and to the upper end of said standard. the links and standard being so arranged that they may be collapsed so as to lie substantially par allel with and about the lever.y means for temporarily retaining the slidable end of the second pair of links at a predetermined op erative position upon the lever and means for securing the links and standard in their collapsed position.

3. A collapsible lifting jack and bumper lill lili

bracket forv a motor vehicle as claimed in claim l and wherein the lever comprises two tubes one of which lies limitably slidable upon and surrounding a length of the other, collars upon the tubes, one of such collars being limitably slidably secured to the outer tube, the other collar being,` limitably slidable partly upon both the inner and outer tubes, a coil spring surrounding the outer tube and interposed between the collars, articulation means whereby the rear end of the lever is secured to the vehicle springa at or near an axle, means carried by one of the collars for detachably connecting;` it to one end of the vehicle spring, a bumper bar including two sections, the forward end of the lever terminating` in a tubular T piece throughwhieh one section of the bumper bar may be slid into position, and means for securing the adjacent ends of the two sections of the bumper bar together and for holding` them rigidly in position.

1i. A collapsible lifting' jack and bumper bracket for a motor vehicle cou'ipifsiner a standard, a lirst class leven two pairs of links pivoted At the standard and pivotally connected to the fulcrum point of the lever, articulation means for securing the rear end of the lever to the spring of the vehicle con sisting of a plate adapted to be rigidly Cured to the vehicle spring having` a lun' provided with a bolt hole, a collar upon the rear end of the lever provided with a bo's bored at right angles to the lever, and a bolt arranged through the lug` and perforation in thel boss on the collar and through the upper ends of one pair of said links, substantially as and for the purposes set forth.

5. A collapsible lifting` iack and bumper bracket as claimed in claim 4, wherein a double headed pin is mounted on one end of the veh'cle spring', a collar on the lever, a coil spring; for detachablv securing` and normally holding' the collar in engagement with the double-headed pin whereby the forward end of the lever is supported in a horizontal position when the member is adapted to act as a bracket for one half of the bumper bar.

6. collapsible lifting` jack and bumper for a. motor vehicle as claimet in claim l, wherein a tubular piece is arranged on the forward end of the lever and includes a cross member transversely bored axially in a line with the lever, and the bore in the cross member being adapted to receive a section of the bumper bar when the latter has been removed for the purpose of increasing the length of the lever.

7. A collapsible lifting,` jack and bumper bracket ,for a motor vehicle as claimed in claim l, wherein two levers are employed, tubular T pieces fitted on the forward ends thereof and includincross pieces, a bumper bar consisting of two tubes which. are adapted to be slid through the cross menibers of their respective tubular T pieces, one near eac-h sde of the vehicle, such cross members of th-e tubular "i" pieces lyingartially in a line with one another and consti-- tilting,l sockets7 in order that the inner end ot each of the two halves of the bumper bar may enter therein, and n'ieans for removably securingl 'the bumper bars in the cross pieces.

8. fr collapsible lifting` jack and bun'iper bracket for motor vehicle compr ingr a standard,l a lever pivotally fulcrumed thereA to, a bumper bar including; two sections, a Tpiece fitted on the forward end ol 'the lever for accoinmodatinplr one-half of the bumper bar, each section of the bumper bar being bent so that it will be rearwardly inclined when usefL as a lever extension, each bumper section extremity beine' provided w'th a loiigritudinal slot. a fixed transverse pin positioned within the vertical member of the T piece and engaging the longitudinal slot when the bumper is removed from the cross member of the i' piece and inserted in the verticalr member of the T piece thereby enablingY the said extending portion of the lever to be moved throng-1h the greatest arc permitted by the n'iovement of the main portion of the lever upon its pivotal point.

9. A collapsible lifting;` jack and bumper bracket for a motor vehicle as claimed in Claim '2, wherein the means whereby the links and .standard are secured in ther collapsible position comprise a rockablc saddle piec-e, a split collar secured to the lever and in pivotal connection with the rockable piece and the slidable end of the second pair of links, a radially projecting stud pn on the lever, the saddle piece being; provi-.fled with' a perforation with whicl said .stud pin may be caused to engage by movement of the saddle piece upon its pivotal point, the foot of the standard beingprovided wth a perforation, and a spring` operated pin projecting` from the perforated end of the lever and adapted to engage with a perforation in the foot of the standard.

10. A collapsible liftincf jack and bumper bracket for a motor vehicle having' a lever, means for supportingzf and retaining' the lever in horizontal position to enable it to act as a bracket for the bumper bar consistl ing of a collar and a double headed pin` sub- ANTONIO BOSCARIOL. 

